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 8,852 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Most, if not all, of the glucagon-producing tumours of the pancreas are malignant. For this reason an early diagnosis is essential. The glucagonoma syndrome is associated with a skin rash, stomatitis, anaemia, glucose-intolerance, hypoaminoacidaemia, weight loss, elevated sedimentation rate and hyperglucagonaemia. The more important and constant findings are the skin lesion, the low level of aminoacids in the blood and the increased glucagon concentrations. The skin lesion is not pathognomonic, but any therapy-resistant bullous dermatosis which microscopically is characterized by epidermal changes should alert the clinician to suspect a glucagonoma. The syndrome can be proved by demonstration of hyperglucagonaemia and a pancreatic tumour.
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PMID:Possible entries to the diagnosis of a glucagon-producing tumour. 22 89

The objective of this study was to determine the prevalence of clinical signs of malnutrition, and to measure the interrelationship with socioeconomic, anthropometric, dietetic and educational achievement parameters. A random sample of 550 Chilean elementary and high school graduates (1:1), of both sexes (1:1), from public and private schools (1:1) and from high, medium and low socioeconomic status (SES) (1:1:1), was chosen in the Metropolitan Area of Santiago, Chile. SES was measured through the Graffar Modified Scale. Clinical signs of malnutrition were assessed according to Jelliffe. Nutritional status was determined by means of anthropometric measurements: percentages of weight/age (W/A), height/age (H/A) and weight for height (W/H) were compared with the WHO Tables; head circumference/age (HC/A) with the Tanner Tables, and branchial anthropometric parameters by applying the Frisancho norms. Standard procedures for the 24 hour dietary recall interviews were used to collect data, and adequacy of intake was assessed by the FAO/WHO pattern. Educational achievement (EA) was measured through the Achievement Evaluation Program, (AEP) and Academic Aptitude Test (AAT) in elementary and high school graduates, respectively. Results showed that apart from caries (87.5%), most prevalent clinical signs of malnutrition were dermatosis (13.4%), follicular hyperkeratosis type I (13.2%), nasolabial dyssebacea (7.9%), lustreless hair (7.7%), angular stomatitis (4.4%) and cheilosis (2.7%). The number of clinical signs of malnutrition was found inversely and significantly associated with SES, H/A, vitamin A and calcium intake, as well as with EA, besides registering a lower nutrient intake, specially for energy, riboflavin and niacin.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Nutrition and education. IV. Clinical signs of malnutrition and its relationship with socioeconomic, anthropometric, dietetic and educational achievement parameters. 130 41

Neutralization tests with a strain (BA) of Allerton-type herpes virus, derived from a buffalo (Syncerus caffer) were carried out on 924 sera from 17 species of E. African game animals and on cattle sera from Tanzania (2001), Kenya (792) and Uganda (410).Buffalo populations throughout E. Africa showed a very high rate of infection, with all animals over 2 years of age serologically positive. Antibody was present in some giraffe, waterbuck and hippopotamus sera and, less frequently, in impala, eland, bushbuck and oryx. Data are provided on the titres of positive samples; the mean titre of buffalo sera increased with age.Cattle in many localities of N. Tanzania and S. Kenya showed a very high rate of infection, 85-95% of sera from animals more than 2-years old containing antibody; the titres recorded were lower than those in buffaloes. Very high infection rates were also found in Karamoja and Teso (Uganda) and also in some other areas of Kenya, whilst a considerably lower incidence of infection was detected in W. Nile Province of Uganda and in central Tanzania. Differences in infection rates may have been related to herd size and husbandry practices.It was shown that a wave of infection was probably spreading through cattle in N. Tanzania at about the same time as an outbreak of disease occurred in buffaloes and it is suggested that virus transmission may have been by biting flies.No clinical signs attributable to the virus were reported in cattle but mouth lesions similar to those recorded in buffaloes, or nasal lesions, could have passed undetected. Allerton-type virus probably produces a range of clinical syndromes in cattle, closely resembling those associated with some herpes viruses in primates but infection is seldom related in the field to either pseudo-lumpy skin disease, mammillitis or stomatitis.
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PMID:Investigations of Allerton-type herpes virus infection in East African game animals and cattle. 432 48

A total of 9,955 schoolchildren aged 6-16 years have been examined in a tropical region. The prevalence of dermatosis varied from 21 to 87% in the municipalities surveyed. The most common dermatoses were pediculosis (prevalence 50%), nevi (16.8%), pityriasis versicolor (13.2%), pyoderma (12.2%), pityriasis alba (9.9%), dermatophytosis (6.2%), viral dermatosis (6.2%), scabies (3.0%) and acne vulgaris (2.7%). The prevalence of angular stomatitis, miliaria rubra, candidiasis, piedra nigra, keratosis pilaris, ephelides and geographic tongue is lower but still relatively high. Females had higher rates of pediculosis capitis and males higher prevalence of pityriasis alba. The prevalence of pityriasis versicolor, pigmented nevus and scabies was similar in males and females. Folliculitis, macular pigmented nevi and especially pityriasis versicolor tended to increase with age. Leprosy is hyperendemic in the surveyed area and its rate in the schoolchildren examined was 0.08%. Population movement (urbanization), socioeconomic situation, living conditions, promiscuity, and lack of hygiene may be the cause of such high prevalence and of association of two or more skin conditions. Climatic conditions might have enhanced the prevalence of certain dermatoses (pityriasis versicolor, dermatophytosis, piedra nigra, candidiasis, miliaria rubra).
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PMID:Epidemiological survey of skin diseases in schoolchildren living in the Purus Valley (Acre State, Amazonia, Brazil). 727 19

We present a clinically atypical case of discoid lupus erythematosus in the mother of a boy with chronic granulomatous disease. In this disorder, the phagocytes are unable to produce superoxide anion to degrade incorporated microorganisms. In addition to a discoid lupus erythematosus-like skin disease, recurrent stomatitis aphthosa, hidradenitis suppurativa and Raynaud phenomenon are markedly associated with heterozygote carriers of chronic granulomatous disease. Based on this conspicuous association, diverse models concerning the pathogenesis of lupus erythematosus are discussed.
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PMID:[Lupus erythematosus discoid-like dermatosis in a carrier of septic granulomatosis]. 836 80

Paraneoplastic pemphigus is a rare skin disease characterized by painful mucosal ulcerations and polymorphous skin lesions in association with an underlying neoplasm. A 54-year-old Japanese man, who had received chemotherapy and radiation therapy due to a diagnosis of non-Hodgkin's lymphoma, developed marked stomatitis, conjunctivitis and blisters. Histologic examination showed suprabasal cleft formation with acantholysis and keratinocyte necrosis. Direct immunofluorescence revealed the deposition of IgG at the cell surface of the keratinocytes and C3 at the basement membrane zone. Indirect immunofluorescence on normal human skin and rat bladder sections revealed circulating autoantibodies to the cell surface of both keratinocytes and transitional epithelia. Immunoprecipitation disclosed antibodies reactive to the 250-kD, 230-kD, 210-kD and 170-kD proteins. From these results, a diagnosis of paraneoplastic pemphigus was made. This is the first report of paraneoplastic pemphigus from Japan.
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PMID:Paraneoplastic pemphigus: the first case report from Japan. 858 81

Gold salts are used for rheumatoid arthritis, and also in resistant corticosteroid dermatoses such as pemphigus. Gold salts inhibit the expression of endothelial cell adhesion molecules, but activity varies from one molecule to another; thiomalate alone gives the same effect. Patients given gold salts have as high risk of cutaneous reactions, and a provisional diagnosis of "gold dermatisis" is insufficient. The mechanisms of cutaneous reactions are unknown and vary according to the molecules. Smokers, HLA Bw35 patients and perhaps atopic states are more prone to gold drug reaction. Inflammation at the site of injections is frequent but with no consequence. Accumulation (chrysiasis) may be observed with long-term treatment. The main problem is its diagnosis as it may mimic numerous dermatoses. Immunological adverse events are the most frequently encountered. Pruritus is frequently observed, more often with oral salts. Exanthemas are common and may disclose an associated visceral disease. Drug hypersensitivity is rare, but severe. All these types necessitate drug interruption although prescription has been continued after development of pityriasis rosea-like and eczematous eruptions in some series without worsening. Lichenoid eruptions require withdrawal, but the skin disease may continue. Oral presentation is frequent, either as a taste abnormality, or as stomatitis. Contact dermatitis may flare in patients sensitized to gold. Rare non-immunological skin diseases have been also observed. Careful dermatological assessment correlated with an imputability method and search of visceral side-effects could lead to a better choice for the patient. Skin tests are not reliable.
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PMID:[Cutaneous reactions to gold salts]. 895 65

In humans and dogs, bullous pemphigoid (BP) is an autoimmune blistering disease associated with the production of basement membrane autoantibodies that target the 180-kd type XVII collagen (BP180, BPAG2) and/or the 230-kd plakin epidermal isoform BPAG1e (BP230). In two adult cats, an acquired dermatosis and stomatitis was diagnosed as BP subsequent to the fulfillment of the following criteria: 1) presence of cutaneous vesicles, erosions, and ulcers; 2) histologic demonstration of subepidermal vesiculation with inflammatory cells, including eosinophils; 3) in vivo deposition of IgG autoantibodies at the epidermal basement membrane zone; and 4) serum IgG autoantibodies targeting a 180-kd epidermal protein identified as type XVII collagen. In both cats, the antigenic epitopes targeted by IgG autoantibodies were shown to be situated in the NC16A ectodomain of type XVII collagen, a situation similar to that of humans and dogs with BP. Feline BP therefore can be considered a clinical, histopathologic, and immunologic homologue of BP in humans and dogs.
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PMID:Novel feline autoimmune blistering disease resembling bullous pemphigoid in humans: IgG autoantibodies target the NC16A ectodomain of type XVII collagen (BP180/BPAG2). 1042 Nov

A survey was conducted to determine the availability, country of origin, and manufacturer of vaccines for all Office International Des Epizooties (OIE) list A diseases. A large number of classical swine fever, foot-and-mouth disease and Newcastle disease vaccines were found. A limited number of vaccines was also located for African horse sickness, bluetongue, contagious bovine pleuropneumonia, highly pathogenic avian influenza, lumpy skin disease, peste des petits ruminants, rift valley fever, rinderpest, sheep and goat pox, and vesicular stomatitis. No African swine fever or swine vesicular disease vaccines were found. Experimental vaccines are not included in this survey.
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PMID:A survey of vaccines produced for OIE list A diseases in OIE member countries. 1467 73

Dystrophic epidermolysis bullosa (DEB) is an inherited blistering skin disorder caused by mutations in the type VII collagen gene (COL7A1). Therapeutic introduction of COL7A1 into skin cells holds significant promise for the treatment of DEB. The purpose of this study was to establish an efficient retroviral transfer method for COL7A1 into DEB epidermal keratinocytes and dermal fibroblasts, and to determine which gene-transferred cells can most efficiently express collagen VII in the skin. We demonstrated that gene transfer using a combination of G protein of vesicular stomatitis virus-pseudotyped retroviral vector and retronectin introduced COL7A1 into keratinocytes and fibroblasts from a DEB patient with the lack of COL7A1 expression. Real-time polymerase chain reaction analysis of the normal human skin demonstrated that the quantity of COL7A1 expression in the epidermis was significantly higher than that in the dermis. Subsequently, we have produced skin grafts with the gene-transferred or untreated DEB keratinocytes and fibroblasts, and have transplanted them into nude rats. Interestingly, the series of skin graft experiments showed that the gene-transferred fibroblasts supplied higher amount of collagen VII to the new dermal-epidermal junction than the gene-transferred keratinocytes. An ultrastructural study revealed that collagen VII from gene-transferred cells formed proper anchoring fibrils. These results suggest that fibroblasts may be a better gene therapy target of DEB treatment than keratinocytes.
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PMID:Fibroblasts show more potential as target cells than keratinocytes in COL7A1 gene therapy of dystrophic epidermolysis bullosa. 1654 Oct 96


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